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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsWidnauSpirig Partner AG
Spirig Partner AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Spirig Partner AG is an independent architectural firm. The firm handles planning and realization of new-builds and renovations, providing project planning, construction management and participation in competitions for residential, commercial, leisure and public building projects, including outdoor/landscape spaces.

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Spirig Partner AG

6
Architectural planning
Planning and development of new builds and renovations in the fields of living, working, leisure and public buildings.
Construction management
Construction management for new builds and renovations, with schedule and cost reliability, and support throughout the project up to execution.
Landscape architecture
Landscape architecture as part of architectural projects, in particular for outdoor spaces and shaping the exterior environment.
Residential project development
Planning and realisation of single-family homes, multi-family homes and conversions or extensions in the residential sector.
Commercial project development
Planning and realisation of commercial and fit-out projects, such as office extensions, retail units, new commercial buildings and operational premises.
Competition planning
Handling of architectural competitions and competition projects for various construction assignments.
Trust & reputation

ranQ Trust Score of Spirig Partner AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Spirig Partner AG scores 67.6 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.73.324%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.45.610%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.78.08%
Spirig Partner AG scores 89.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.70.07%
Spirig Partner AG scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).86.722%
Spirig Partner AG scores 18.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.12.64%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.23.34%
Qualifications+0.00

Spirig Partner AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.8 out of 5 stars from 5 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.8
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.85
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

June 18, 2025Media
Spirig Partner AG: Söhne übernehmen vom Vater die Führung des Unternehmens
rheintaler.ch
June 5, 2025Media
Beim Widnauer Architekturbüro Spirig Partner AG beginnt ein neues Kapitel
leaderdigital.ch
June 5, 2025Media
Generationenwechsel bei Spirig Partner Architekten in Widnau
businessclassost.ch

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Location

Rütistrasse 23
9443 Widnau
Opening hours
Mon
08:00 - 11:30, 13:30 - 16:30
Tue
08:00 - 11:30, 13:30 - 16:30
Wed
08:00 - 11:30, 13:30 - 16:30
Thu
08:00 - 11:30, 13:30 - 16:30
Fri
08:00 - 11:30, 13:30 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.828.188
Founded
1989 · 37 years
Last commercial register change
June 22, 2026
Employees
11 to 20
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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